Dislodging device



Oct. 25, 1932. w. H. WINEMAN DISLODGING DEVICE Filed Nov. 20. 1929 gawk:Ewen/5'04? wmemam Patented Get. 25, 1932 v UNITED STATES PATENT OFFICE.

WADE H. WINEMAN, or MICHIGAN CITY, INDIANA, ASSIGNOR '10 SULLIVAN vMACHINERY COMPANY, A CORPORATION or MASSACHUSETTS DISLODGING DEVICE,

. Application filedljo'vember 20, 1929. Serial No. 408,617.

My invention relates to the mining of coal, and more particularly to thepreparation of the coal after the same has been dislodged but 'notcompletely br'oken'down by the use of explosives, this preparationmaking it possible toload the coal into a mine car by means of a loadingmachine. I

One object of my invention is to provide an improved mechanism andmethod for dislodging coal which has been shattered by explosives but isstill standing wedged between the floor and the roof of the mine. Afurther object of my invention is to provide improved means forpenetrating a standing mass of coal by a tool and then retracting thetool so as to bring down the massof coal in such loose condition that itmay be loaded into mine cars'by aloading machine. :Fur-

ther and more specific objects will appear during the course of theensuing'description.

In the accompanying drawing there is shownfor purposes-of illustrationone form which the invention may-assume in practice.

In the drawing, a

Fig. 1 is a View in side elevation of a loading machine with oneillustrative embodiment of my invention applied thereto.

. Fig. 2 is a view principally in central horizontal section of amechanism which may be mounted on a loading machine and employed forpenetrating standing coal.

Fig. 3 is a transverse section on line 3-3 of Fig. 1.

Fig. 4 is a view in side elevation of the head of the penetrating tool;

, Fig. 5 is a view in end elevation taken from the left side of Fig. 1'and showing in dotted lines the position to which the tool is-turnedbefore the same is withdrawn from'the coal.

Fig. 6 shows a diagrammatic view, partly in elevation and partly .insection through the coal face, of the mechanism of my invention in theposition the same assumes when it has been driven into the standing coaland is ready to be retracted.

It is well known that the adoption of mechanical devices for loadingcoal into mine cars has been attended by several difficult problems, oneof which is due to the fact that according to the bestmining practicethe coal is, in many instances, merely loosened by'explosives and notcompletely shot down. It is highly desirable to obtain lump coal with assmall a proportion off-slack or-fines as; possible; and therefore theminimum amount of explosives is used. When the coal cult to break thesame down from its standi is tobe mined with picks it is not very diifi:

ing position after shooting. A loading map chine, however, is betteradapted to load coal from a loose heap on the floor of the mine thanfrom the standing position. At

times the additional labor involved in preparing thestanding coal bymeans of picks so as to'bring it down into a loose heap onto 7 themine'floor so that it may be loaded, has

been the deciding factor" against the use of a'loading machine. In anyevent, this step of preparing the coal slows down th'e'process H ofloading out'the coal; and the mechanism disc-losedherein is designed totake the place of the hand labor formerly necessary in preparing thestanding coal for loading.

' My improved mechanism may be mounted on various types of loadingmachines, orin fact on any machine which may be brought up to the mineface so as to direct the tool into the proper position so that it maypenetrate the standing coal. As disclosed in Fig.

1, the same is applied to a loading machine 10 go veyed away by theconveying mechanism of the loading machine; 7

A mechanism "for preparing the coal, and generally indicated by thenumeral 20, is mounted by screws 21 on one of the arms 13. It is obviousthat amechanism 20'may be mounted on each arm 13. A bedplate 22 isprovided with a slid'eway along which a cylinder member 23 mayreciprocate. The

member 23 is formed with a bore within which is disposed a piston 24whose rear end is fastened by bolts 25 to a lug or standard 26 carriedby the bed plate. Actuating fluid is supplied by a pipe 27 (see Fig. 1)to the bore of the member 23. A valve 28 controls the supply of fluidalternatively to one or the other of the branches 29 or 30, the branch29 communicating with the front end of the bore and the branch 30communicating with the rear end of the bore. It is obvious that by meansof the valve 28 the cylindrical member 23 may be forced away from thelug 26 or' retracted towards the same. 1

A percussive motor 31 is carried by the front end of the cylinder member23; and actuating fluid is supplied thereto underv the control of avalve 32. The motor 31 comprises a floating hammer piston 33, a strikingblock 84:, and a control valve. The control valve is not shown, as thismay be of a conventional type adapted to supply the actuating fluidalternately to the front and back of the hammer piston 33. A tool 36 iscarried with the end of its shank received within a front head 35; andcomprises an elongated shank with an enlargement or collar 37 formedintegrally therewith adjacent its inner end. A bushing 38 surrounds theshank to, the rear of the collar 37 this bushing being carried in thechuck now to be described. The chuck comprises a chuck member 39 havinga bore for receiving the bushing 38, and an enlarged bore in its forwardportion which is adapted to receive split rings 40. When the chuckhousing 41 is screwed into place, the split rings 40 .are held withinthe forward bore of the member 39 and the enlargement 37 is securelyretained within the front head 35, while the rear end of the tool shankprojects into a position to be engaged by the striking block 3 1. Thepenetrating point of the tool 36 is fashioned somewhat like an arrowhead, but it will be noted from Fig. 5 that the edges are both beveledin addition to the arrowlike angularity from front to back. The purposeof these beveled edges of the head is to facilitate turning of the sameafter it has penetrated the standing coal. The rear portion of the headresists withdrawal of the head from the coal, once the head haspenetrated the same, and acts similarly to the barbs on a hook or anarrow.

The operation of my improved device will now be described. The loadingmachine 10 is maneuvered so-as to bring the same in front of thestanding coal and the arms 13 are elevated to bring the mechanism'20 tothe proper elevation. Thereupon the tool 36 is operated after the mannerof a drifter type of drill so as to force the tool into the standingcoal (see Fig. 6). When the tool has penetrated to a suitable depth aStillson wrench or similar tool is used in cooperation with theroughened portion 36 to rotate the tool through (see Fig. 5). Thereuponthe drive of the tread mechanisms 11 is reversed so as to retract thetool 36. It is to be noted that the front head construction 35 retainsthe tool within the drilling mechanism 31 and the whole is withdrawn.The arrow-like head, as it is withdrawn, brings with it the coal whichhas been shattered by the explosives.

It is obvious. that by my improved mechanism the standing coal isloosened; and that this preparation of the coal greatly facilitates theloading of the same by aloading machine. While I have in thisapplication specifically describedone form which my invention may assumein practice, it will be understood that this form ofthe-same is shownfor purposes of illustration and that "the invention may be modified andembodied in various other forms without departing from its spirit or thescope of the appended claims. I

What I claim as new and by Letters Patent is: V

1. The method of preparing coal ingwhich comprises loosening the coalfrom the face, causing a vibrating penetrating tool by purely axialthrust to penetrate the standing coal, thereafter locking the tool inthe coal when so penetrated, and moving the tool when so locked backwardto dislodge the coal.

2. The method of preparing coal for loading which comprises looseningthe coal from the face, causing a piercing tool to be thrust by apurely'aXial movement into the coal to penetrate the standing coal soloosened, thereafter looking the tool by a rotary motion with the coalwhen so penetrated, and moving the tool when so locked backwardtodislodge the coal. f

3. The method of preparing a standing wall of shot coal for loadingwhich includes penetrating the coal by a purely axial thrust of avibrating piercing implement, thereafter actuating the implement toeffect interlocking thereof with the inner portion of the wall to bedislodged, and retracting the implement when so interlocked to pull downthe wall.

4. A method of preparing coal for loading comprising penetrating thestanding coal with an implement by a hammering action while theimplement remains in operative contact with the coal, thereafter causinginterlocking engagement of the implement with the inner wall of-the coalto be dislodged, and retracting said implement when so interlocked todislodge the coal.

5. A method of dislodging standing coal comprising piercing the coal bya vibrating penetrating element while the latter remains desire tosecurein operative contact with the coal, interlocking the penetratingelement in the coal to be dislodged whenso penetrated,-and withdrawingthe penetrating element when so interlocked to dislodge the standingcoal.

6. An apparatus for dislodging standing coal comprising a barbedpenetrating tool, means for imparting axial thrust to said penetratingtool to pierce thecoal, said tool p .85 for loadbeing rotatable when inits inner position in the coal to cause the barb thereon to interlockback of the block of coal to be dislodged, andmeans for withdrawing thetool axially when so interlocked with the coal to dislodge the coal.

7. An apparatus for dislodging standing 7 coal comprising a barbedpenetrating tool, means for imparting axial thrust to the tool to piercethe coal to be dislodged, means for imparting a vibrating action to thetool during said axial thrust thereof, the'barbs on said tool beingadapted to interlock back of the wall of coal to be dislodged, and meansfor withdrawing the tool axially when so interlocked with the coal todislodge the coal.

8. In combination, a portable base, and material dislodging meanscarried by said base and movable therewith and including a materialpenerating tool and supporting means for said tool on said base, said,tool being held against withdrawal from its supporting means uponmovement thereof with said base or upon movement of the supporting meansrelative to said base, means for feed-- ing said tool to effectpenetrating of the material to be dislodged, said tool being rotatablerelative to its supporting means into a position to resist withdrawalfrom the material penetrated, and said tool being movable bodily withsaid base to eifect retraction of the tool when in withdrawal resistingposition in the material to dislodge the material.

9. In combination, a movable support, tool supporting means thereonmovable relative,

thereto, a percussively actuated penetrating tool carried by said toolsupporting means and held against removal from said supporting meansupon movement thereof with said movable support or upon movement of thetoolsupporting means relative to said support, feeding means for saidtool operativeindependently of said movable support, said penetratingtool having a head rotatable into a position to resist the withdrawal ofsaid tool from the material being worked upon, and means for retractingsaid tool to dislodge the material.

In testimony whereof I aflix my signature.

' WADE H. VVINEMAN.

